arch/parisc/include/asm/compat.h

   1 #ifndef _ASM_PARISC_COMPAT_H
   2 #define _ASM_PARISC_COMPAT_H
   3 /*
   4  * Architecture specific compatibility types
   5  */
   6 #include <linux/types.h>
   7 #include <linux/sched.h>
   8 #include <linux/thread_info.h>
   9
  10 #define COMPAT_USER_HZ          100
  11 #define COMPAT_UTS_MACHINE      "parisc\0\0"
  12
  13 typedef u32     compat_size_t;
  14 typedef s32     compat_ssize_t;
  15 typedef s32     compat_time_t;
  16 typedef s32     compat_clock_t;
  17 typedef s32     compat_pid_t;
  18 typedef u32     __compat_uid_t;
  19 typedef u32     __compat_gid_t;
  20 typedef u32     __compat_uid32_t;
  21 typedef u32     __compat_gid32_t;
  22 typedef u16     compat_mode_t;
  23 typedef u32     compat_ino_t;
  24 typedef u32     compat_dev_t;
  25 typedef s32     compat_off_t;
  26 typedef s64     compat_loff_t;
  27 typedef u16     compat_nlink_t;
  28 typedef u16     compat_ipc_pid_t;
  29 typedef s32     compat_daddr_t;
  30 typedef u32     compat_caddr_t;
  31 typedef s32     compat_timer_t;
  32
  33 typedef s32     compat_int_t;
  34 typedef s32     compat_long_t;
  35 typedef s64     compat_s64;
  36 typedef u32     compat_uint_t;
  37 typedef u32     compat_ulong_t;
  38 typedef u64     compat_u64;
  39 typedef u32     compat_uptr_t;
  40
  41 struct compat_timespec {
  42         compat_time_t           tv_sec;
  43         s32                     tv_nsec;
  44 };
  45
  46 struct compat_timeval {
  47         compat_time_t           tv_sec;
  48         s32                     tv_usec;
  49 };
  50
  51 struct compat_stat {
  52         compat_dev_t            st_dev; /* dev_t is 32 bits on parisc */
  53         compat_ino_t            st_ino; /* 32 bits */
  54         compat_mode_t           st_mode;        /* 16 bits */
  55         compat_nlink_t          st_nlink;       /* 16 bits */
  56         u16                     st_reserved1;   /* old st_uid */
  57         u16                     st_reserved2;   /* old st_gid */
  58         compat_dev_t            st_rdev;
  59         compat_off_t            st_size;
  60         compat_time_t           st_atime;
  61         u32                     st_atime_nsec;
  62         compat_time_t           st_mtime;
  63         u32                     st_mtime_nsec;
  64         compat_time_t           st_ctime;
  65         u32                     st_ctime_nsec;
  66         s32                     st_blksize;
  67         s32                     st_blocks;
  68         u32                     __unused1;      /* ACL stuff */
  69         compat_dev_t            __unused2;      /* network */
  70         compat_ino_t            __unused3;      /* network */
  71         u32                     __unused4;      /* cnodes */
  72         u16                     __unused5;      /* netsite */
  73         short                   st_fstype;
  74         compat_dev_t            st_realdev;
  75         u16                     st_basemode;
  76         u16                     st_spareshort;
  77         __compat_uid32_t        st_uid;
  78         __compat_gid32_t        st_gid;
  79         u32                     st_spare4[3];
  80 };
  81
  82 struct compat_flock {
  83         short                   l_type;
  84         short                   l_whence;
  85         compat_off_t            l_start;
  86         compat_off_t            l_len;
  87         compat_pid_t            l_pid;
  88 };
  89
  90 struct compat_flock64 {
  91         short                   l_type;
  92         short                   l_whence;
  93         compat_loff_t           l_start;
  94         compat_loff_t           l_len;
  95         compat_pid_t            l_pid;
  96 };
  97
  98 struct compat_statfs {
  99         s32             f_type;
 100         s32             f_bsize;
 101         s32             f_blocks;
 102         s32             f_bfree;
 103         s32             f_bavail;
 104         s32             f_files;
 105         s32             f_ffree;
 106         __kernel_fsid_t f_fsid;
 107         s32             f_namelen;
 108         s32             f_frsize;
 109         s32             f_flags;
 110         s32             f_spare[4];
 111 };
 112
 113 struct compat_sigcontext {
 114         compat_int_t sc_flags;
 115         compat_int_t sc_gr[32]; /* PSW in sc_gr[0] */
 116         u64 sc_fr[32];
 117         compat_int_t sc_iasq[2];
 118         compat_int_t sc_iaoq[2];
 119         compat_int_t sc_sar; /* cr11 */
 120 };
 121
 122 #define COMPAT_RLIM_INFINITY 0xffffffff
 123
 124 typedef u32             compat_old_sigset_t;    /* at least 32 bits */
 125
 126 #define _COMPAT_NSIG            64
 127 #define _COMPAT_NSIG_BPW        32
 128
 129 typedef u32             compat_sigset_word;
 130
 131 typedef union compat_sigval {
 132         compat_int_t    sival_int;
 133         compat_uptr_t   sival_ptr;
 134 } compat_sigval_t;
 135
 136 typedef struct compat_siginfo {
 137         int si_signo;
 138         int si_errno;
 139         int si_code;
 140
 141         union {
 142                 int _pad[128/sizeof(int) - 3];
 143
 144                 /* kill() */
 145                 struct {
 146                         unsigned int _pid;      /* sender's pid */
 147                         unsigned int _uid;      /* sender's uid */
 148                 } _kill;
 149
 150                 /* POSIX.1b timers */
 151                 struct {
 152                         compat_timer_t _tid;            /* timer id */
 153                         int _overrun;           /* overrun count */
 154                         char _pad[sizeof(unsigned int) - sizeof(int)];
 155                         compat_sigval_t _sigval;        /* same as below */
 156                         int _sys_private;       /* not to be passed to user */
 157                 } _timer;
 158
 159                 /* POSIX.1b signals */
 160                 struct {
 161                         unsigned int _pid;      /* sender's pid */
 162                         unsigned int _uid;      /* sender's uid */
 163                         compat_sigval_t _sigval;
 164                 } _rt;
 165
 166                 /* SIGCHLD */
 167                 struct {
 168                         unsigned int _pid;      /* which child */
 169                         unsigned int _uid;      /* sender's uid */
 170                         int _status;            /* exit code */
 171                         compat_clock_t _utime;
 172                         compat_clock_t _stime;
 173                 } _sigchld;
 174
 175                 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
 176                 struct {
 177                         unsigned int _addr;     /* faulting insn/memory ref. */
 178                 } _sigfault;
 179
 180                 /* SIGPOLL */
 181                 struct {
 182                         int _band;      /* POLL_IN, POLL_OUT, POLL_MSG */
 183                         int _fd;
 184                 } _sigpoll;
 185         } _sifields;
 186 } compat_siginfo_t;
 187
 188 #define COMPAT_OFF_T_MAX        0x7fffffff
 189 #define COMPAT_LOFF_T_MAX       0x7fffffffffffffffL
 190
 191 /*
 192  * A pointer passed in from user mode. This should not
 193  * be used for syscall parameters, just declare them
 194  * as pointers because the syscall entry code will have
 195  * appropriately converted them already.
 196  */
 197
 198 static inline void __user *compat_ptr(compat_uptr_t uptr)
 199 {
 200         return (void __user *)(unsigned long)uptr;
 201 }
 202
 203 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
 204 {
 205         return (u32)(unsigned long)uptr;
 206 }
 207
 208 static __inline__ void __user *arch_compat_alloc_user_space(long len)
 209 {
 210         struct pt_regs *regs = &current->thread.regs;
 211         return (void __user *)regs->gr[30];
 212 }
 213
 214 static inline int __is_compat_task(struct task_struct *t)
 215 {
 216         return test_ti_thread_flag(task_thread_info(t), TIF_32BIT);
 217 }
 218
 219 static inline int is_compat_task(void)
 220 {
 221         return __is_compat_task(current);
 222 }
 223
 224 #endif /* _ASM_PARISC_COMPAT_H */